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hw/ppc: Add emulation of Genesi/bPlan Pegasos II 

Add new machine called pegasos2 emulating the Genesi/bPlan Pegasos II,
a PowerPC board based on the Marvell MV64361 system controller and the
VIA VT8231 integrated south bridge/superio chips. It can run Linux,
AmigaOS and a wide range of MorphOS versions. Currently a firmware ROM
image is needed to boot and only MorphOS has a video driver to produce
graphics output. Linux could work too but distros that supported this
machine don't include usual video drivers so those only run with
serial console for now.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <30cbfb9cbe6f46a1e15a69a75fac45ac39340122.1616680239.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
BALATON Zoltan 2021-03-25 14:50:39 +01:00 committed by David Gibson
parent dcdf98a901
commit ba7e5ac18e
5 changed files with 167 additions and 0 deletions
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10
MAINTAINERS
View File

@ -1364,6 +1364,16 @@ F: pc-bios/canyonlands.dt[sb]
F: pc-bios/u-boot-sam460ex-20100605.bin
F: roms/u-boot-sam460ex
pegasos2
M: BALATON Zoltan <balaton@eik.bme.hu>
R: David Gibson <david@gibson.dropbear.id.au>
L: qemu-ppc@nongnu.org
S: Maintained
F: hw/ppc/pegasos2.c
F: hw/pci-host/mv64361.c
F: hw/pci-host/mv643xx.h
F: include/hw/pci-host/mv64361.h
RISC-V Machines
---------------
OpenTitan

2
default-configs/devices/ppc-softmmu.mak
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@ -14,5 +14,7 @@ CONFIG_SAM460EX=y
CONFIG_MAC_OLDWORLD=y
CONFIG_MAC_NEWWORLD=y
CONFIG_PEGASOS2=n
# For PReP
CONFIG_PREP=y

9
hw/ppc/Kconfig
View File

@ -68,6 +68,15 @@ config SAM460EX
select USB_OHCI
select FDT_PPC
config PEGASOS2
bool
select MV64361
select VT82C686
select IDE_VIA
select SMBUS_EEPROM
# This should come with VT82C686
select ACPI_X86
config PREP
bool
imply PCI_DEVICES

2
hw/ppc/meson.build
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@ -78,5 +78,7 @@ ppc_ss.add(when: 'CONFIG_E500', if_true: files(
))
# PowerPC 440 Xilinx ML507 reference board.
ppc_ss.add(when: 'CONFIG_VIRTEX', if_true: files('virtex_ml507.c'))
# Pegasos2
ppc_ss.add(when: 'CONFIG_PEGASOS2', if_true: files('pegasos2.c'))
hw_arch += {'ppc': ppc_ss}

144
hw/ppc/pegasos2.c Normal file
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@ -0,0 +1,144 @@
/*
* QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
*
* Copyright (c) 2018-2020 BALATON Zoltan
*
* This work is licensed under the GNU GPL license version 2 or later.
*
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "hw/hw.h"
#include "hw/ppc/ppc.h"
#include "hw/sysbus.h"
#include "hw/pci/pci_host.h"
#include "hw/irq.h"
#include "hw/pci-host/mv64361.h"
#include "hw/isa/vt82c686.h"
#include "hw/ide/pci.h"
#include "hw/i2c/smbus_eeprom.h"
#include "hw/qdev-properties.h"
#include "sysemu/reset.h"
#include "hw/boards.h"
#include "hw/loader.h"
#include "hw/fw-path-provider.h"
#include "elf.h"
#include "qemu/log.h"
#include "qemu/error-report.h"
#include "sysemu/kvm.h"
#include "kvm_ppc.h"
#include "exec/address-spaces.h"
#include "trace.h"
#include "qemu/datadir.h"
#include "sysemu/device_tree.h"
#define PROM_FILENAME "pegasos2.rom"
#define PROM_ADDR 0xfff00000
#define PROM_SIZE 0x80000
#define BUS_FREQ_HZ 133333333
static void pegasos2_cpu_reset(void *opaque)
{
PowerPCCPU *cpu = opaque;
cpu_reset(CPU(cpu));
cpu->env.spr[SPR_HID1] = 7ULL << 28;
}
static void pegasos2_init(MachineState *machine)
{
PowerPCCPU *cpu = NULL;
MemoryRegion *rom = g_new(MemoryRegion, 1);
DeviceState *mv;
PCIBus *pci_bus;
PCIDevice *dev;
I2CBus *i2c_bus;
const char *fwname = machine->firmware ?: PROM_FILENAME;
char *filename;
int sz;
uint8_t *spd_data;
/* init CPU */
cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
if (PPC_INPUT(&cpu->env) != PPC_FLAGS_INPUT_6xx) {
error_report("Incompatible CPU, only 6xx bus supported");
exit(1);
}
/* Set time-base frequency */
cpu_ppc_tb_init(&cpu->env, BUS_FREQ_HZ / 4);
qemu_register_reset(pegasos2_cpu_reset, cpu);
/* RAM */
memory_region_add_subregion(get_system_memory(), 0, machine->ram);
/* allocate and load firmware */
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname);
if (!filename) {
error_report("Could not find firmware '%s'", fwname);
exit(1);
}
memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal);
memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom);
sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1,
PPC_ELF_MACHINE, 0, 0);
if (sz <= 0) {
sz = load_image_targphys(filename, PROM_ADDR, PROM_SIZE);
}
if (sz <= 0 || sz > PROM_SIZE) {
error_report("Could not load firmware '%s'", filename);
exit(1);
}
g_free(filename);
/* Marvell Discovery II system controller */
mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
((qemu_irq *)cpu->env.irq_inputs)[PPC6xx_INPUT_INT]));
pci_bus = mv64361_get_pci_bus(mv, 1);
/* VIA VT8231 South Bridge (multifunction PCI device) */
/* VT8231 function 0: PCI-to-ISA Bridge */
dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
TYPE_VT8231_ISA);
qdev_connect_gpio_out(DEVICE(dev), 0,
qdev_get_gpio_in_named(mv, "gpp", 31));
/* VT8231 function 1: IDE Controller */
dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide");
pci_ide_create_devs(dev);
/* VT8231 function 2-3: USB Ports */
pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci");
pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci");
/* VT8231 function 4: Power Management Controller */
dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM);
i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c"));
spd_data = spd_data_generate(DDR, machine->ram_size);
smbus_eeprom_init_one(i2c_bus, 0x57, spd_data);
/* VT8231 function 5-6: AC97 Audio & Modem */
pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97);
pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97);
/* other PC hardware */
pci_vga_init(pci_bus);
}
static void pegasos2_machine(MachineClass *mc)
{
mc->desc = "Genesi/bPlan Pegasos II";
mc->init = pegasos2_init;
mc->block_default_type = IF_IDE;
mc->default_boot_order = "cd";
mc->default_display = "std";
mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9");
mc->default_ram_id = "pegasos2.ram";
mc->default_ram_size = 512 * MiB;
}
DEFINE_MACHINE("pegasos2", pegasos2_machine)